Added a form for entering a passphrase for a private ssh key and the corresponding logic for processing a private key

client/ui/qml/Controls/PopupWithInputField.qml

@@ -0,0 +1,62 @@
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+
+Popup {
+    id: root
+
+    property alias text: textField.text
+    property alias placeholderText: textField.placeholderText
+    property string yesText: "yes"
+    property string noText: "no"
+    property var yesFunc
+    property var noFunc
+
+    signal editingFinished()
+
+    anchors.centerIn: Overlay.overlay
+    modal: true
+    closePolicy: Popup.NoAutoClose
+
+    width: parent.width - 20
+
+    ColumnLayout {
+        width: parent.width
+
+        TextField {
+            id: textField
+            horizontalAlignment: Text.AlignHCenter
+            Layout.fillWidth: true
+            font.pixelSize: 16
+            echoMode: TextInput.Password
+        }
+
+        RowLayout {
+            Layout.fillWidth: true
+            BlueButtonType {
+                id: yesButton
+                Layout.preferredWidth: parent.width / 2
+                Layout.fillWidth: true
+                text: yesText
+                onClicked: {
+                    root.enabled = false
+                    if (yesFunc && typeof yesFunc === "function") {
+                        yesFunc()
+                    }
+                    root.enabled = true
+                }
+            }
+            BlueButtonType {
+                id: noButton
+                Layout.preferredWidth: parent.width / 2
+                Layout.fillWidth: true
+                text: noText
+                onClicked: {
+                    if (noFunc && typeof noFunc === "function") {
+                        noFunc()
+                    }
+                }
+            }
+        }
+    }
+}

client/ui/qml/main.qml

@@ -234,6 +234,9 @@ Window  {
             popupWarning.popupWarningText = message
             popupWarning.open()
         }
+        function onShowPassphraseRequestMessage() {
+            popupWithInputField.open()
+        }
     }
 
     MessageDialog {
@@ -355,4 +358,21 @@ Window  {
     PopupWarning {
         id: popupWarning
     }
+    PopupWithInputField {
+        id: popupWithInputField
+        placeholderText: "Enter private key passphrase"
+        yesFunc: function() {
+            editingFinished()
+            close()
+            UiLogic.passphraseDialogClosed()
+            text = ""
+        }
+        noFunc: function() {
+            close()
+            UiLogic.passphraseDialogClosed()
+        }
+        onEditingFinished: {
+            UiLogic.privateKeyPassphrase = text
+        }
+    }
 }

client/ui/uilogic.cpp

@@ -149,6 +149,16 @@ void UiLogic::initalizeUiLogic()
     connect(m_notificationHandler, &NotificationHandler::connectRequested, pageLogic<VpnLogic>(), &VpnLogic::onConnect);
     connect(m_notificationHandler, &NotificationHandler::disconnectRequested, pageLogic<VpnLogic>(), &VpnLogic::onDisconnect);
 
+    auto passphraseCallback = [this]() {
+        emit showPassphraseRequestMessage();
+        QEventLoop loop;
+        QObject::connect(this, &UiLogic::passphraseDialogClosed, &loop, &QEventLoop::quit);
+        loop.exec();
+
+        return m_privateKeyPassphrase;
+    };
+    m_serverController->setPassphraseCallback(passphraseCallback);
+
     if (m_settings->serversCount() > 0) {
         if (m_settings->defaultServerIndex() < 0) m_settings->setDefaultServer(0);
         emit goToPage(Page::Vpn, true, false);
@@ -576,3 +586,4 @@ bool UiLogic::isContainerAlreadyAddedToGui(DockerContainer container)
     }
     return false;
 }
+

client/ui/uilogic.h

@@ -62,7 +62,7 @@ class UiLogic : public QObject
     AUTO_PROPERTY(bool, pageEnabled)
     AUTO_PROPERTY(int, pagesStackDepth)
     AUTO_PROPERTY(int, currentPageValue)
-    AUTO_PROPERTY(QString, popupWarningText)
+    AUTO_PROPERTY(QString, privateKeyPassphrase);
 
     READONLY_PROPERTY(QObject *, containersModel)
     READONLY_PROPERTY(QObject *, protocolsModel)
@@ -136,6 +136,9 @@ signals:
     void toggleLogPanel();
     void showWarningMessage(QString message);
 
+    void showPassphraseRequestMessage();
+    void passphraseDialogClosed();
+
 private slots:
     // containers - INOUT arg
     void installServer(QPair<amnezia::DockerContainer, QJsonObject> &container);